T Cap fuse

Ok, I narrowed my battery discharge problem to 2 fuses under the hood and 3 inside the cab. Under the hood, pulling the lights and the battery fuses eliminates the drain (pulled the positive cable and rigged up a light bulb
in line between the battery and the cable). Inside the cab, pulling the courtesy fuse eliminates approximately half the drain. The battery fuse is a little more complicated. If I pull the radio battery fuse something under that dash buzzes and clicks. If a pull the T Cap fuse the same thing happens. If I pull both at once, the buzzing/clicking gets amazingly worse. However, pulling both also does not get rid of the battery discharge. Any idea what a T Cap is?
Mike D.
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On Tue, 18 Aug 2009 13:28:40 -0500, Michael Dobony wrote:

duh, not cap, but case, as in transfer case. Need to wear my glasses.
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